{
  "schema_version": "jp-election-municipality-proportional-swing-graph.v1",
  "dataset_id": "jp-election-db.derived-shape.graph",
  "family": "graph",
  "dataset": "municipality-proportional-swing-2025-2026",
  "source_release_version": "2026-05-03-v050",
  "selector": {
    "prefecture_code": "42",
    "prefecture_name": "長崎県",
    "prefecture_name_en": "Nagasaki",
    "party_id": "SAN",
    "party_label": "参政",
    "party_label_en": "Sanseito",
    "scope": "prefecture",
    "ranking_id": "",
    "ranking_label": "",
    "ranking_label_en": ""
  },
  "comparison": {
    "comparison_key": "20250720_hc_pr__20260208_hr_block",
    "baseline_election_set_key": "20250720_hc",
    "baseline_election_date": "2025-07-20",
    "baseline_vote_system": "pr",
    "target_election_set_key": "20260208_hr",
    "target_election_date": "2026-02-08",
    "target_vote_system": "block"
  },
  "metric": {
    "primary_metric_id": "votes_change_rate_pct",
    "primary_metric_label": "票数増減率",
    "secondary_metric_id": "votes_delta",
    "secondary_metric_label": "票数差"
  },
  "summary": {
    "point_grain": "municipality",
    "point_count": 21,
    "municipality_count": 21,
    "min_votes_change_rate_pct": -99.950127,
    "max_votes_change_rate_pct": -31.338296
  },
  "municipalities": [
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422096",
      "municipality_name": "対馬市",
      "municipality_name_en": "Tsushima-shi",
      "baseline_votes": 1316.6,
      "target_votes": 904.0,
      "votes_delta": -412.6,
      "votes_change_rate_pct": -31.338296,
      "baseline_vote_share_pct_muni": 9.902226,
      "target_vote_share_pct_muni": 23.329032,
      "vote_share_delta_pct_pt": 13.426806
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423238",
      "municipality_name": "波佐見町",
      "municipality_name_en": "Hasami-cho",
      "baseline_votes": 1004.0,
      "target_votes": 629.0,
      "votes_delta": -375.0,
      "votes_change_rate_pct": -37.350598,
      "baseline_vote_share_pct_muni": 15.253722,
      "target_vote_share_pct_muni": 24.332689,
      "vote_share_delta_pct_pt": 9.078967
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422100",
      "municipality_name": "壱岐市",
      "municipality_name_en": "Iki-shi",
      "baseline_votes": 1533.0,
      "target_votes": 937.0,
      "votes_delta": -596.0,
      "votes_change_rate_pct": -38.878017,
      "baseline_vote_share_pct_muni": 11.373247,
      "target_vote_share_pct_muni": 25.073588,
      "vote_share_delta_pct_pt": 13.700341
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423831",
      "municipality_name": "小値賀町",
      "municipality_name_en": "Ojika-cho",
      "baseline_votes": 137.0,
      "target_votes": 83.0,
      "votes_delta": -54.0,
      "votes_change_rate_pct": -39.416058,
      "baseline_vote_share_pct_muni": 10.17075,
      "target_vote_share_pct_muni": 5.920114,
      "vote_share_delta_pct_pt": -4.250636
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422070",
      "municipality_name": "平戸市",
      "municipality_name_en": "Hirado-shi",
      "baseline_votes": 1651.619,
      "target_votes": 979.0,
      "votes_delta": -672.619,
      "votes_change_rate_pct": -40.724828,
      "baseline_vote_share_pct_muni": 12.534105,
      "target_vote_share_pct_muni": 20.83422,
      "vote_share_delta_pct_pt": 8.300115
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423084",
      "municipality_name": "時津町",
      "municipality_name_en": "Togitsu-cho",
      "baseline_votes": 1683.0,
      "target_votes": 974.0,
      "votes_delta": -709.0,
      "votes_change_rate_pct": -42.127154,
      "baseline_vote_share_pct_muni": 13.100335,
      "target_vote_share_pct_muni": 27.229522,
      "vote_share_delta_pct_pt": 14.129187
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "424110",
      "municipality_name": "新上五島町",
      "municipality_name_en": "Shinkamigoto-cho",
      "baseline_votes": 662.0,
      "target_votes": 381.0,
      "votes_delta": -281.0,
      "votes_change_rate_pct": -42.44713,
      "baseline_vote_share_pct_muni": 7.534714,
      "target_vote_share_pct_muni": 14.947038,
      "vote_share_delta_pct_pt": 7.412324
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423220",
      "municipality_name": "川棚町",
      "municipality_name_en": "Kawatana-cho",
      "baseline_votes": 756.0,
      "target_votes": 414.0,
      "votes_delta": -342.0,
      "votes_change_rate_pct": -45.238095,
      "baseline_vote_share_pct_muni": 12.82878,
      "target_vote_share_pct_muni": 18.482143,
      "vote_share_delta_pct_pt": 5.653363
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422126",
      "municipality_name": "西海市",
      "municipality_name_en": "Saikai-shi",
      "baseline_votes": 1311.0,
      "target_votes": 717.0,
      "votes_delta": -594.0,
      "votes_change_rate_pct": -45.308924,
      "baseline_vote_share_pct_muni": 11.381196,
      "target_vote_share_pct_muni": 23.76533,
      "vote_share_delta_pct_pt": 12.384134
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423211",
      "municipality_name": "東彼杵町",
      "municipality_name_en": "Higashisonogi-cho",
      "baseline_votes": 413.0,
      "target_votes": 219.0,
      "votes_delta": -194.0,
      "votes_change_rate_pct": -46.973366,
      "baseline_vote_share_pct_muni": 11.643643,
      "target_vote_share_pct_muni": 10.751105,
      "vote_share_delta_pct_pt": -0.892538
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423912",
      "municipality_name": "佐々町",
      "municipality_name_en": "Saza-cho",
      "baseline_votes": 916.0,
      "target_votes": 461.0,
      "votes_delta": -455.0,
      "votes_change_rate_pct": -49.672489,
      "baseline_vote_share_pct_muni": 15.533322,
      "target_vote_share_pct_muni": 14.123775,
      "vote_share_delta_pct_pt": -1.409547
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422088",
      "municipality_name": "松浦市",
      "municipality_name_en": "Matsuura-shi",
      "baseline_votes": 1078.0,
      "target_votes": 522.0,
      "votes_delta": -556.0,
      "votes_change_rate_pct": -51.576994,
      "baseline_vote_share_pct_muni": 11.566524,
      "target_vote_share_pct_muni": 16.948052,
      "vote_share_delta_pct_pt": 5.381528
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422142",
      "municipality_name": "南島原市",
      "municipality_name_en": "Minamishimabara-shi",
      "baseline_votes": 1811.0,
      "target_votes": 1.252,
      "votes_delta": -1809.748,
      "votes_change_rate_pct": -99.930867,
      "baseline_vote_share_pct_muni": 10.185602,
      "target_vote_share_pct_muni": 0.044955,
      "vote_share_delta_pct_pt": -10.140647
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422134",
      "municipality_name": "雲仙市",
      "municipality_name_en": "Unzen-shi",
      "baseline_votes": 2111.0,
      "target_votes": 1.424,
      "votes_delta": -2109.576,
      "votes_change_rate_pct": -99.932544,
      "baseline_vote_share_pct_muni": 12.20584,
      "target_vote_share_pct_muni": 0.043073,
      "vote_share_delta_pct_pt": -12.162767
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422037",
      "municipality_name": "島原市",
      "municipality_name_en": "Shimabara-shi",
      "baseline_votes": 2132.729,
      "target_votes": 1.311,
      "votes_delta": -2131.418,
      "votes_change_rate_pct": -99.938529,
      "baseline_vote_share_pct_muni": 11.990381,
      "target_vote_share_pct_muni": 0.036396,
      "vote_share_delta_pct_pt": -11.953985
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422045",
      "municipality_name": "諫早市",
      "municipality_name_en": "Isahaya-shi",
      "baseline_votes": 7446.928,
      "target_votes": 4.563,
      "votes_delta": -7442.365,
      "votes_change_rate_pct": -99.938726,
      "baseline_vote_share_pct_muni": 12.515635,
      "target_vote_share_pct_muni": 0.437908,
      "vote_share_delta_pct_pt": -12.077727
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422118",
      "municipality_name": "五島市",
      "municipality_name_en": "Goto-shi",
      "baseline_votes": 1715.0,
      "target_votes": 1.021,
      "votes_delta": -1713.979,
      "votes_change_rate_pct": -99.940466,
      "baseline_vote_share_pct_muni": 10.8737,
      "target_vote_share_pct_muni": 0.043539,
      "vote_share_delta_pct_pt": -10.830161
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422053",
      "municipality_name": "大村市",
      "municipality_name_en": "Omura-shi",
      "baseline_votes": 6607.647,
      "target_votes": 3.766,
      "votes_delta": -6603.881,
      "votes_change_rate_pct": -99.943005,
      "baseline_vote_share_pct_muni": 15.105265,
      "target_vote_share_pct_muni": 0.162188,
      "vote_share_delta_pct_pt": -14.943077
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "423076",
      "municipality_name": "長与町",
      "municipality_name_en": "Nagayo-cho",
      "baseline_votes": 2423.0,
      "target_votes": 1.344,
      "votes_delta": -2421.656,
      "votes_change_rate_pct": -99.944532,
      "baseline_vote_share_pct_muni": 12.608628,
      "target_vote_share_pct_muni": 0.06747,
      "vote_share_delta_pct_pt": -12.541158
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422010",
      "municipality_name": "長崎市",
      "municipality_name_en": "Nagasaki-shi",
      "baseline_votes": 22165.001,
      "target_votes": 11.556,
      "votes_delta": -22153.445,
      "votes_change_rate_pct": -99.947864,
      "baseline_vote_share_pct_muni": 12.382267,
      "target_vote_share_pct_muni": 6.38453,
      "vote_share_delta_pct_pt": -5.997737
    },
    {
      "prefecture_code": "42",
      "prefecture_name": "長崎県",
      "prefecture_name_en": "Nagasaki",
      "jis_code": "422029",
      "municipality_name": "佐世保市",
      "municipality_name_en": "Sasebo-shi",
      "baseline_votes": 14685.207,
      "target_votes": 7.324,
      "votes_delta": -14677.883,
      "votes_change_rate_pct": -99.950127,
      "baseline_vote_share_pct_muni": 14.533765,
      "target_vote_share_pct_muni": 7.324,
      "vote_share_delta_pct_pt": -7.209765
    }
  ]
}